Description
Yanmar 8LV370 (Z) 370HP Inboard Diesel Engine – Compact V8 Marine Power for Performance & Reliability
Unrivaled Marine Performance for Yachts, Powerboats, and Commercial Vessels
The Yanmar 8LV370 (Z) 370HP Inboard Diesel Engine delivers the ideal blend of high-performance marine propulsion, fuel efficiency, and cutting-edge reliability. Engineered for luxury yachts, performance powerboats, and light-duty commercial vessels, the 8LV370 offers 370HP (272kW) at 3800 RPM for smooth, responsive power.
Built around a compact, lightweight V8 platform with common rail direct injection and advanced electronic controls, this engine ensures clean emissions, quiet operation, and extended cruising ranges while meeting the latest EPA Tier 3 and EU RCD Tier 2 standards. Backed by X Factors Motorsports, you receive competitive pricing, expert support, and genuine Yanmar quality.
Yanmar 8LV370 (Z) Key Specifications
| Feature | Specification |
|---|---|
| Rated Output | 370 mhp (272 kW) @ 3800 RPM |
| Displacement | 4.46L (272.1 cu. in.) |
| Configuration | V8, 8 Cylinders |
| Bore x Stroke | 86mm x 96mm (3.39″ x 3.78″) |
| Fuel System | Common Rail Direct Injection |
| Oil Capacity | 12.4 Liters |
| Weight | 435 kg (959 lbs) |
| Dimensions (L x W x H) | 1136mm x 817mm x 763mm |
| Certifications | EPA Tier 3, EU RCD Tier 2 |
| Combustion | High-Pressure Common Rail System |
Key Benefits & Features
✅ 370HP High-Performance V8 Diesel
Exceptional power delivery for a wide range of marine applications requiring performance and durability.
✅ Fuel-Efficient & Eco-Friendly
Advanced common rail direct injection optimizes fuel consumption and meets stringent emissions standards.
✅ Compact & Lightweight Design
Ideal for space-constrained installations without compromising power output.
✅ Electronic Throttle & Shift Controls
Smooth, precise control with enhanced responsiveness for better handling.
✅ Durability in Harsh Marine Environments
Built to Yanmar’s industry-leading standards for longevity and low maintenance.
✅ Compliance Ready
EPA Tier 3 and EU RCD Tier 2 certified for global waters.
What’s Included
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12V 140A Alternator
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Electronic Throttle & Shift Controls
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Fuel Pre-Filter with Water Separator
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Freshwater Expansion Tank
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L-Type Exhaust Mixing Elbow
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Production-Grade Wiring Harness
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Shipping Cradle (M-6038-73)
Optional Accessories
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NMEA2000 Engine Monitoring Integration
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Secondary Alternators (12V / 24V)
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On-Board Spare Parts Kit
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Extension Harnesses (3m, 5m, 10m)
Applications for the Yanmar 8LV370
| Application | Ideal For |
|---|---|
| Luxury Yachts | Premium, quiet propulsion for smooth cruising |
| Performance Powerboats | High torque and horsepower for thrilling speeds |
| Light-Duty Commercial | Reliable, efficient power for professional vessels |
Why Choose X Factors Motorsports?
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✅ Genuine Yanmar Engines with Full Warranty
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✅ Competitive Pricing on New & Used Units
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✅ Expert Marine Propulsion Support
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✅ Fast Shipping & Dependable Customer Service
Related Engines Available
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Yanmar 8LV320 – Efficient 320HP Diesel
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Yanmar 6LY440 – Dependable 440HP Power
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Yanmar 6LF550 – High-Performance 550HP Diesel
❓ Frequently Asked Questions (FAQs)
Q1: What are the key specs of the Yanmar 8LV370?
370 mhp at 3800 RPM, 4.46L V8, with common rail injection for optimized fuel efficiency.
Q2: What is the oil capacity?
12.4 liters for optimal lubrication and long service life.
Q3: Where can I get the Yanmar 8LV370 manual?
Available upon request with your purchase or through our resources page.
Q4: Are there common maintenance concerns?
Routine maintenance per Yanmar’s guidelines prevents issues. Typical attention areas include injectors and electronic controls.
Q5: How does it compare to the Yanmar 8LV320?
The 8LV370 offers 370HP vs. the 320HP of the 8LV320, ideal for larger or higher-speed vessels.
Related Resources
Yanmar 8LV370 vs. Volvo Penta D6-370 vs. Cummins QSB6.7 380 – Marine Diesel Engine Comparison
| Feature | Yanmar 8LV370 (Z) | Volvo Penta D6-370 | Cummins QSB6.7 380 |
|---|---|---|---|
| Horsepower | 370 HP @ 3800 RPM | 370 HP @ 3500 RPM | 380 HP @ 3000 RPM |
| Displacement | 4.46L V8 | 5.5L Inline-6 | 6.7L Inline-6 |
| Fuel System | Common Rail Direct Injection | Common Rail Direct Injection | High-Pressure Common Rail |
| Configuration | V8 | Inline 6-Cylinder | Inline 6-Cylinder |
| Weight (Approx.) | 435 kg (959 lbs) | 760 kg (1675 lbs) | 740 kg (1631 lbs) |
| Dimensions (LxWxH) | 1136 x 817 x 763 mm | Larger Footprint | Larger Footprint |
| Oil Capacity | 12.4L | ~13L | ~15L |
| Certifications | EPA Tier 3 / EU RCD Tier 2 | EPA Tier 3 / IMO / RCD | EPA Tier 3 / IMO / RCD |
| Fuel Efficiency | Excellent at Cruising RPM | Very Good | Very Good |
| Noise / Vibration | Smooth, V8 Balanced | Quiet, Inline 6 Balanced | Quiet, Inline 6 Balanced |
| Serviceability | Compact, Easy Access | Requires more space | Requires more space |
| Ideal Applications | Sport Yachts, Cruisers, Light Duty | Sport Boats, Light Commercial | Light Commercial, Larger Vessels |
| Availability | Widely Available via Yanmar | Widely Available via Volvo | Widely Available via Cummins |
Key Differences at a Glance
| Criteria | Yanmar 8LV370 | Volvo Penta D6-370 | Cummins QSB6.7 380 |
|---|---|---|---|
| Lightest Weight | ✅ Yes (435 kg) | ❌ Heavier | ❌ Heavier |
| Most Compact | ✅ Yes (Small Footprint) | ❌ Larger | ❌ Larger |
| Smoothest Vibration | ✅ V8 Balance | ✅ Inline-6 Balance | ✅ Inline-6 Balance |
| Best for Repowers | ✅ Compact Repowers | ❌ Requires Space Adjustment | ❌ Requires Space Adjustment |
| Fuel Economy at Cruise | ✅ Excellent | ✅ Very Good | ✅ Very Good |
Recommended Applications by Engine Type
| Engine | Best For |
|---|---|
| Yanmar 8LV370 | Performance Yachts, Compact Repowers, Faster Vessels |
| Volvo Penta D6-370 | Cruisers, Sport Boats, Light Duty Commercial |
| Cummins QSB6.7 380 | Trawlers, Workboats, Light Commercial, Heavier Hulls |
📈 Why Choose Yanmar 8LV370 Over Volvo or Cummins?
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✅ Smaller, Lighter, More Compact – Easier repower for tight engine bays.
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✅ Higher RPM V8 Design – Better suited for high-speed performance vessels.
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✅ Exceptional Fuel Efficiency – Proven cruising economy for recreational and light-duty use.
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✅ Cleaner Installation – Less weight, smaller dimensions reduce refit costs.